Technical state analysis of reaction rod brackets steel castings for buses
| Назва | Technical state analysis of reaction rod brackets steel castings for buses |
| Назва англійською | Technical state analysis of reaction rod brackets steel castings for buses |
| Автори | Lesya Svirska; Denys Bartoshevskyi; Sofiia Krechkovska; Andrian Ugryn; Ivan Kurnat; Lidiia Bohyn |
| Принадлежність | Karpenko Physico-Mechanical Institute of the NAS of Ukraine, Lviv, Ukraine Lviv Polytechnic National University, Lviv, Ukraine Ukrainian National Forestry University, Lviv, Ukraine |
| Бібліографічний опис | Technical state analysis of reaction rod brackets steel castings for buses / Lesya Svirska; Denys Bartoshevskyi; Sofiia Krechkovska; Andrian Ugryn; Ivan Kurnat; Lidiia Bohyn // Scientific Journal of TNTU. — Tern.: TNTU, 2024. — Vol 114. — No 2. — P. 5–10. |
| Bibliographic description: | Svirska L.; Bartoshevskyi D.; Krechkovska S.; Ugryn A.; Kurnat I.; Bohyn L. (2024) Technical state analysis of reaction rod brackets steel castings for buses. Scientific Journal of TNTU (Tern.), vol 114, no 2, pp. 5–10. |
| УДК | 621.74 |
| Ключові слова | steel castings, bracket, strength, ductility, fracture. |
The technical state of the unexploited steels brackets' metal has been analyzed. Their mechanical properties inconsistency with the regulated requirements has been revealed. It has been shown that the elongation δ of the bracket metal, which varied from 1.8 to 3.3%, and the yield strength were lower than the regulated level. The low values of δ and obtained ratios of yield strength to ultimate tensile strength (σYS / σUTS) indicate a low ductility reserve of the bracket metal, consequently posing a high risk of unforeseen brittle fracture during operation. | |
| ISSN: | 2522-4433 |
| Перелік літератури |
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8. Kalandyk B., Zapała R., Rakowska A. Characteristics of defects present in industrial steel castings due to metal-mould reactions. Archives of metallurgy and materials, 2009, 54 (2), pp. 289–297.
9. Achamyeleh A. Kassie, Samuel B. Assfaw. Minimization of casting defects. IOSR Journal of Engineering, 2013, 3 (5), pp. 31–38. |
| References: |
1. Development of mechanical engineering in Ukraine: problems and ways to solve them: monograph, State University “Institute of Regional Studies named after M. I. Dolishnyi National Academy of Sciences of Ukraine”; Science editor, Doctor of Economics Science, Prof. S. O. Ishchuk. Lviv, 2022, 137 p.
2. Ocheri C. The role of foundries in spare parts production and economics development of nigeria using ajaokuta steel company as a case study. International Journal of Innovative Studies in Sciences and Engineering Technology. 2020, 6 (7), pp. 38–44.
3. Popovych V., Popovych V. Technology of structural materials and materials science: textbook for students. Technical special higher education closing. Lviv, Svit, 2006. 624 p.
4. Types of casting defects. Electronic edition – Mode of access: https://studfile.net/preview/10102566/ page:2/.
5. Stoian E. V., Bratu V., Enescu C. M, Rusanescu C. O. Analysis of internal defects appeared in the continuous casting. Scientific Bulletin of Valahia University. Materials and Mechanics, 16 (14), pp. 23–27 Doi: 10.1515/bsmm-2018-0005.
6. Blair M., Monroe R., Beckermann C., Hardin R., Carlson K., Monroe C. Predicting the occurrence and effects of defects in castings. The J. Minerals. Metals and Materials Society, 2005, 57, p. 29–34.
7. Kalandyk B., Głownia J. Wady wtórnego zazuzlenia na przemysłowych odlewach ze staliwa, Archiwum Odlewnictwa, 2007, 6 (22), pp. 254–259.
8. Kalandyk B., Zapała R., Rakowska A. Characteristics of defects present in industrial steel castings due to metal-mould reactions. Archives of metallurgy and materials, 2009, 54 (2), pp. 289–297.
9. Achamyeleh A. Kassie, Samuel B. Assfaw. Minimization of casting defects. IOSR Journal of Engineering, 2013, 3 (5), pp. 31–38. |
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